Rotary cutter.



PATENTED JUNE 5, 1906.

A. OORLEY.

ROTARY CUTTER.

.. APPLICATION FILED JULY12.1905,-

gnucwtoz 28% (Memes nnrrnn srArns Parana or tion. ANDREW JACKSON SORLEY, F EAST POINT, GEORGIA. ROTARY curt- R.

Patented June 5, 1906.

Application filed duly 12, 1905. erial No. 269,368.

To all whom) it, may concern: 7 Be it known that 1, ANDREW J AOKSON 00R- LEY, a citizen of the United States, residing at East Point, in the county of Fulton and State of Georgia, have invented new and usefuHmrovements in Rotary Cutters, of which the ollowing is a specification.

My invention pertains to rotary cutters;

' and it contemplates the provision of a durable l Figure 1 is a si rotary cutter designed more especially for expeditiously sinking in afinished manner dies to be used in forging the inserted chisel-bit now generally employed in saws.

The invention also contemplates the provision of a cutter adapted tobe used to advantage in cuttin smooth ways in drophammers; lathes, p aners, 800.

With the foregoing in mind the invention will be fully understood from the following description and claim when taken in connection with the accompanying drawings, forming part of this specification, in whiche elevation of my novel cutter in position on an arbor, which is shown in transversesection. Fig. 2 is a front elevation of the same. Fig. 3 is a diametrical section taken in the plane indicated by the line 3 3 of Fig. 1. Fig. 4 is a detail transverse section takenon the curved line 4 4 of Fig. 1 Fig. 5 is a plan view pf the die which the cutter is adapted to sink. Fig. 6 is a transverse section taken inthe plane indicated by the line 6 6 of Fig. 5. Fig. 7 isaplan view of the chisel-bit which is drop-forged in the said die, and Fig. 8 is a perspective view of the said chisel-bit. 4

Similar letters designate corresponding arts in all of the views of thedrawings, reerring to which A-is the arbor, and B is my novel cutter, which is carried by the arbor. The arbor is preferably of the overhanging type, and the work may be fed to the cutter or the cutter to the work, as per'style' of mill and depth of impression wanted taken by templet.

- The cutter B is preferably made in one piece of steel and com rises a central body portion a, designed to life fixed with respect to they arbor A, and a circular series of teeth 6. These teeth I) are tapered transversely from their bases to their outer ends, as best shown in Figs. 2 and 3, are gradually in- -more especially quickly and easily extricated creased in thickness forwardly, as indicated by c in Fig. 4, and have their said outer ends alternately inclined or beveled right and left and gradually increased in width forwardly, as indicated by d.

As before stated, the cutter is designed. to sink the die C, (shown in Figs. 5 and 6,) in which. the chisel-bit D, Figs. 7 and 8, is drop-forged, and itwill be observed that the ends (1 of the cutter, alternatelybeveled in opposite directions and radually increased in width forwardly, wil assure the production of a perfect tongue 6 in the die and through the medium of said tongue a perfect groove f in the bit, and in connection with the rearward reduction in width of the teeth (indicated by a) will prevent shavings from hanging in the die, and thereby causing the tongue to rough u crease in width forwardly of the ends (1 ofteeth I contributes materially to the lasting quality of the cutter. The transverse taper of the teeth I) assures the production of a die of such form that the bit dro om the die.

The gradual inforged can be It will be gathered from the foregoing that my novel cutter is very durable and is adapted to perform the functions ascribed to it with rapidity and certainty, and it will also be appreciated that the cutter can be used to advantage in cutting smooth wayssuc h as m, in Fig. 6in drop hammers, lathes, planers, and other devices.

' I claim- The herein-described rotary cutter com prising a body portion and a circular seriesof teeth onv the periphery of the body portion; the said teeth being tapered transversely fromtheir bases to their outer ends and gradually increased in thickness forwardly and having their outer ends alternately inclined or beveled right and left and also having said inclined or beveled ends gradually increased in width forwardly- In testimony whereof I have hereunto set my hand in presence of two subscribing wit nesses.

ANDREW JACKSON OORLEY,

Witnesses:

J W. TEASLEY, I B. F. HARRISON. I J 

